Sony TRINITRON KV-27V40 Service Manual page 33

DISPLAY POSITION ADJUSTMENT (DISP)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Select DISP with and
4. Adjust with and for adjustment of characters to center .
5. Write the memory by pressing
6. Check if the text is displayed on the screen.
SERVICE DISP
SUB BRIGHT ADJUSTMENT (SBRT)
1. Input a cross-hatch signal.
2. Set to Service adjustment Mode.
3. Set the PICTURE and BRIGHT to minimum.
4. Select SBRT with and
5. Adjust with and to obtain a faintly visible cross-hatch.
6. Write into the memory by pressing
SUB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Select the item DCOL and set to "0" level.
4. Connect oscilloscope probe to C Board,
(B OUT).
5. Select SHUE and SCOL with
6. Adjust with and for the V1 = V4
and V2 = V3 0.1Vp-p (SHUE).
V1
V2 V3
7. Reset the item DCOL to "1" level.
8. Write into the memory by pressing
V. SIZE ADJUSTMENT ( VSIZ)
1. Input a cross-hatch signal.
2. Set to Service adjustment mode.
3. Select VSIZ with and
4. Adjust with and for the best vertical size.
V. SIZE (VSIZ)
/
.
then
15
.
then
7
CN1702 Pin
and .
0.1Vp-p (SCOL)
V4
then
.
/
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KV-27V40 / 27V45 / 27V65 / 29VL40 / 29VL65A / 29VL65C / 29VL85 / 29VL95
V. CENTER ADJUSTMENT (VPOS)
1.Input a cross-hatch signal.
2.Set to Service adjustment Mode.
3.Select VPOS with
4.Adjust with and
5.Write into the memory by pressing
.
V. CENTER (VPOS)
/
H. CENTER ADJUSTMENT (HPOS)
Note : Perform this adjustment after checking H. FREQUENCY.
1. Input a cross-hatch signal.
2. Set the Service adjustment Mode.
3. Select HPOS with
4. Adjust with and
5. Write into the memory by pressing
.
H. CENTER (VPOS)
/
V. LINEARITY (VLIN) AND V CORRECTION
1. Input a cross-hatch signal.
2. V. Correction is automatically adjusted from the circuit and
should satisfy the conditions below:
...
SERVICE ADJUSTMENT MODE MEMORY
.
1. Change DCOL to "1".
2. After completing all adjustments, press "0" then
READ FROM MEMORY
SERVICE
and .
for the best vertical center.
then
?
and .
for the best horizontal center.
then
?
READ
Green
0
Red
.